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Vibrational energy dependence of line broadening in the quinoxaline spectrum

✍ Scribed by Gad Fischer

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
473 KB
Volume
33
Category
Article
ISSN
0009-2614

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✦ Synopsis

The linewidths as a function of the number of quanta of the totnlly sgmmctic prosession forming mode, 525 cm-l (509 -quinoxalined6) have been measured at high resolution in the x~por phase absorp:ion spectrum of quinosaline. The line broadening is artfioutcd to efficient intersystem crossing between the lowest ringlet (ns*) and triplet (:a+) states. me increased broadening observed with increased energy is consistent with theoretical predictions and with the general results of parallel lifetime studies of individual vibronic levels.

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